文章摘要
基于系统效率最优的CVT电动汽车再生制动策略
Regenerative braking strategy research for electric vehicle withcontinuously variable transmission based on optimal system efficiency
  
DOI:
中文关键词: 电动汽车  再生制动  无级变速器  效率最优
英文关键词: electric vehicle  regenerative braking  continuously variable transmission  optimal efficiency
基金项目:江西省教育厅科学技术研究项目(GJJ10632)
作者单位
杨军平1,王歆誉2,蔡源春3,周智庆4 1.南昌工程学院 机械与电气工程学院江西 南昌 3300992.湖南大学 汽车电子与控制技术教育部工程研究中心湖南 长沙 4100823.湖南大学 机械与运载工程学院湖南 长沙 4100824.佛山科学技术学院 机械与电气工程学院广东 佛山 528000 
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中文摘要:
      在考虑再生制动安全性和稳定性的情况下,以能量回收最大化为目标提出了一种并联再生制动控制策略.然后根据实验获取的电池、电机和无级变速器效率特性,基于传动系统效率最优的原则,优化得到再生制动过程中电机转速和无级变速器速比的最佳控制规律,并搭建整车仿真模型且在NEDC循环工况进行仿真分析.仿真结果表明,相比于常用的电机效率最优控制策略,本研究提出的控制策略能够充分利用动力部件的效率特性,进一步提高了能量回收率.
英文摘要:
      In the case of considering security and stability of regenerative braking, a parallel regenerative braking control strategy was proposed with the objective of maximizing the energy recovery. Then according to the efficiency characteristics of battery, motor and continuous variable transmission which acquired from experiment, an optimization procedure was implemented to optimize motor and CVT’s best control strategy during regenerative braking with the principle of optimal powertrain efficiency, and the vehicle simulation model was established and simulation analysis was carried out under NEDC driving cycles. The simulation result indicates that, compared with traditional optimal motor efficiency control strategy, the proposed strategy enables to take full advantage of power parts’ efficiency characteristics and further improve the recover rate of regenerative braking energy.
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